Buffer for shanks of boots or shoes



(No Moda.)

G. THBRRIEN. BUFFER PQR SHANKS 0F BooTs 0R SHOES. No. 529,510. Patented Nov. 20, 1894.

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UNiTED STATES Parent Ottica.

GABRIEL THERRIEN, OF BROOKTO, MASSACHUSETTS.

BUFFER FOR SHANKS OF BOOTS OR SHOES.

SPECIFICATION forming part of Letters Patent N o. 529,510, dated November 20, 1894. Application filed January 12, 1894. Serial No. 496.698. (No model-l To all whom, it may concern.-

Be it known that I, GABRIEL THERRIEN, of Brockton, in thc county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Buffers for the Shanks of Boots or Shoes, of which the following is a specification.

My invention has for its object an elastic buffer covered with sand-paper, for smoothing the shanks of boots and shoes. In such devices it is necessary that the sand-paper should he placed over an elastic cushion, and

it is very desirable that it be capable of being easily put on and when worn be readily taken off, and also that it should be placed on smoothly, as the heel of the boot or shoe to which it is to be applied, will otherwise, tear it. Heretofore the sand-paper, so far as I know, has been placed over felt, which lacks the proper elasticity, and put on in such a Way as that it does not lie perfectly smooth, and as a result oftentimes the heel of the boot or shoe on which it is being used, will catch and tear it. All these difficulties are overcome by the use of my invention.

In the accompanying drawings-Figure 1 is a longitudinal section of my buffer attachment. Fig. 2 is a detail in plan of the roughened Hexible covering for the buffer disk. Fig. 3 is a back view of the buer disk, showing the mannerin which the flexible covering is applied to said disk. Fig. 4 is a longitudinal section through the line 'y y of` Fig. 2. Fig. 5 isa detail in plan on a smaller scale than the other figures of the flexible backing to the roughened covering of the buffer disk. Fig. 6 is a detail enlarged, partly in section, of parts of the buffer shank and inclosed rod and catch. Fig. 7 is a cross section on the line o: fc of Fig. l.

Similar letters represent like parts in all the figures.

a is the metallic shaft of my buffer attachment, passing through and held by bearings g g, which may be secured to the standard of the machine in any appropriate manner. The shaft a is in the form ot' a tube, and is provided at one end with a disk e, said disk having a transverse hole corresponding with the hole of the shaft a.

h is a rod passing through the shafta and a hole in the disk e, and 't' is a disk secured to said-rod hnear the disk e, said disk t' being provided with pins or studspp, Which pass through corresponding holes in'the disk e.

In the end of the rod h opposite to the disk t', is a recess hg', in Which a spring catch hf rests, said catch being secured to the rod h (as shown in Fig. l) and adapted to catch over the end of the shaft d.

la is the buffer disk, of much larger diameter than the two disks e and t', and having a circular recess in which the disk t rests, and an inwardly extending circular flange t" extending between and separating the disks e and This disk 7c alsohas holes corresponding with those in the disk e, the pinsp p of the disk t' passing through said holes to hold the threedisks together. The disk [c is made of any material possessing considrtble rigidity, and preferably with some elasticity.

j is a pad of rubber or similar material secuiely attached to theouter surface of the disk t, thus giving a yielding and elastic bearing to the central portion of the flexible covering of the buffer disk,

m is acircular piece of sand paper or cloth, having a central hole m and a radial opening or slit m? extending from said hole to the edge of the piece m; and vt is a piece of canvas or cloth, of similar shape to the piece m, having its central hole n andslot n2 corresponding with those of the piecem; the piece n being secured to said piecem so as to form a strong support and backing'for the same, but the piece n being also provided With tongues n3 'n3 which extend around the edges of the disk It, and between said disk and the disk e. The above construction is clearly shown in Figs. l, 2, 3, and 4. The radial slits or openings m2 and n2 are for the purpose of permitting the pieces m and n fitting snugly over the convex outer surface of the buffer disk t, Without buckling up. The central holes m and n are for the purpose of rendering a snug fit of the central portions of the flexible pieces m and n With the convex surface of the pad j.y The canvas piece n is stretched over the `disk la, and pins or studs p p extend from the inner surface of the disk t through holes in the disks k and e, and interposed backing piece n, and thus hold said IOG hacking piece and sand paper m securely in 1o hold said rod and shaft together, the studj acting as a spline,hy which 'the shaft a rotates the shaft h. The sand paper m for the hu ffer Wheel can he readily removed by sim ply releasing the spring catch h from the end of I5 the shaft d, and pulling said rod with its disk t' and the disk lc away from the shaft ct and disk e, and then pulling off the pieces n and m. A new piece of sand paper can then he as readily attached hy stretching the pieces` 2o m and n over the disk la, with the holes ofthe tongues 'n3 'n3 passing over the pins p p, then 4inserting; the rod h in the shaft d, so that the pins p p will enter the holes in the disk e, and

the spring catch h2 locking over the end of the shaft a.

It will he found that the sand paper will he so held that there will be no danger of catching upon the heel when the buffer is being used, and the buffer may he operatedand turned in any desired way, Without in the least disturbing the sand paper.

What I claim, and desire to secure hy Letters Patent, is- 1 In a buffer for the shanks of boots and shoes, the combination of the tubular shaft a, having the perforated disk e, the flanged disk 7o having perforatio'ns Vcorresponding with these in the disk e, and the rod h having the spring 7b2 at one end and the disk 't' at the other end, said disk t' having pins p adapted to engage the perforations in the disks e and 7c, all as and for the purposes set forth.

GABRIEL THERRIEN.

Vitnesses:

UHAs. H. DREW, E. A. LOPER. 

